Pediatric anaplastic lymphoma kinase-positive large B-cell lymphoma: a case report and review of the literature.
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| Abstract |
We present a case of pediatric anaplastic lymphoma kinase-positive large B-cell lymphoma (ALK-positive LBCL) with a cervical, mesentery, and pelvis cavity mass. Histologic examination of the cervical mass revealed that the lesion was composed of diffuse large immunoblastic-like or plasmablastic-like tumor cells with a sinusoidal growth pattern. The tumor cells were strongly immunoreactive for ALK; revealed a granular cytoplasmic distribution; and were diffusely positive for CD45, CD4, CD138, epithelial membrane antigen, and multiple myeloma oncogene-1 but negative for CD20 and CD79a. The patient underwent 5 courses of cyclophosphamide, doxorubicin, vincristine, prednisone, and etoposid and obtained a remarkable clinical response with regression of mesentery and pelvis cavity mass. We suggest that this distinct subtype of large B-cell lymphoma should belong to the spectrum of pediatric lymphomas and that radiologic examination should be performed to inspect the progression of disease even if the patients experienced complete remission at initial chemotherapy.
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| Authors | Wei-Hua Yin, Na Guo, Xiao-Ying Tian, Yang Li, Zhi Li |
| Journal | Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society (Pediatr Dev Pathol) 2012 Jul-Aug Vol. 15 Issue 4 Pg. 318-23 ISSN: 1093-5266 [Print] United States |
| PMID | 22394191 (Publication Type: Case Reports, Journal Article, Review) |
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